FIXes for monitoring service VM components like kafka, pub-sub...etc
Change-Id: Iddde297d828b64f96628e0b3b23d509c06969648
diff --git a/xos/synchronizer/templates/kafka_broker.py b/xos/synchronizer/templates/kafka_broker.py
new file mode 100644
index 0000000..1687025
--- /dev/null
+++ b/xos/synchronizer/templates/kafka_broker.py
@@ -0,0 +1,101 @@
+#
+# Copyright 2015 Cisco Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import kafka
+from oslo_log import log
+from oslo_serialization import jsonutils
+from oslo_utils import netutils
+from six.moves.urllib import parse as urlparse
+
+from ceilometer.i18n import _LE
+from ceilometer.publisher import messaging
+
+LOG = log.getLogger(__name__)
+
+
+class KafkaBrokerPublisher(messaging.MessagingPublisher):
+ """Publish metering data to kafka broker.
+
+ The ip address and port number of kafka broker should be configured in
+ ceilometer pipeline configuration file. If an ip address is not specified,
+ this kafka publisher will not publish any meters.
+
+ To enable this publisher, add the following section to the
+ /etc/ceilometer/pipeline.yaml file or simply add it to an existing
+ pipeline::
+
+ meter:
+ - name: meter_kafka
+ interval: 600
+ counters:
+ - "*"
+ transformers:
+ sinks:
+ - kafka_sink
+ sinks:
+ - name: kafka_sink
+ transformers:
+ publishers:
+ - kafka://[kafka_broker_ip]:[kafka_broker_port]?topic=[topic]
+
+ Kafka topic name and broker's port are required for this publisher to work
+ properly. If topic parameter is missing, this kafka publisher publish
+ metering data under a topic name, 'ceilometer'. If the port number is not
+ specified, this Kafka Publisher will use 9092 as the broker's port.
+ This publisher has transmit options such as queue, drop, and retry. These
+ options are specified using policy field of URL parameter. When queue
+ option could be selected, local queue length can be determined using
+ max_queue_length field as well. When the transfer fails with retry
+ option, try to resend the data as many times as specified in max_retry
+ field. If max_retry is not specified, default the number of retry is 100.
+ """
+
+ def __init__(self, parsed_url):
+ super(KafkaBrokerPublisher, self).__init__(parsed_url)
+ options = urlparse.parse_qs(parsed_url.query)
+
+ self._producer = None
+ self._host, self._port = netutils.parse_host_port(
+ parsed_url.netloc, default_port=9092)
+ self._topic = options.get('topic', ['ceilometer'])[-1]
+ self.max_retry = int(options.get('max_retry', [100])[-1])
+
+ def _ensure_connection(self):
+ if self._producer:
+ return
+
+ try:
+ self._producer = kafka.KafkaProducer(
+ bootstrap_servers=["%s:%s" % (self._host, self._port)])
+ except kafka.errors.KafkaError as e:
+ LOG.exception(_LE("Failed to connect to Kafka service: %s"), e)
+ raise messaging.DeliveryFailure('Kafka Client is not available, '
+ 'please restart Kafka client')
+ except Exception as e:
+ LOG.exception(_LE("Failed to connect to Kafka service: %s"), e)
+ raise messaging.DeliveryFailure('Kafka Client is not available, '
+ 'please restart Kafka client')
+
+ def _send(self, context, event_type, data):
+ self._ensure_connection()
+ # TODO(sileht): don't split the payload into multiple network
+ # message ... but how to do that without breaking consuming
+ # application...
+ try:
+ for d in data:
+ self._producer.send(self._topic, jsonutils.dumps(d))
+ LOG.info("Kafka publish")
+ except Exception as e:
+ messaging.raise_delivery_failure(e)